Ore car



z. T. PAR'KER Oct. 31, 1939.J

ORE CAR Filed Aug. 9, 1937 2 Sheets-Sheet 2 Patented Oct. 31, 1,939

UNITED stares PATENT OFFICE 1 Claim.

My present invention relates to an improved ore car for use in the type of furnace utilized for the roasting, and the condensing, of ores containing precious and semi-precious metals.

The furnace of my present invention is an improvement over my oxidizing furnace disclosed in my Patent No. 1,966,643 oi' July 17, 1934, and the system also includes steps in my method of reducing ores as disclosed in my application for Patent Ser. No. 18,875, led April 29, 1935.

In my present invention I utilize a roasting furnace capable of subjecting the ores to a heat of high degree without permitting the products of combustion of the heat source, from co-iningling or associating with the ores and providing means for retaining the ores under treatment, stationary and devoid of agitation.v

The principal object of my present disclosure is the provision of an ore car for a furnace wherein the ores may be roasted to initially remove the low temperature volatilzing elements of the ores such as sulphur and arsenic, after which initial or primary roasting, the ores may be treated for final reduction to secure the base metals.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention wherein the parts are combined and arranged according to one mode I have thus far devised, but it will be understood that changes and alterations may be made in the exemplified structure without departing from the spirit and scope of the appended claim.

In the drawings:

Figure 1 is a longitudinal sectional view of a furnace showing my ore car therein.

Figure 2 is a transverse sectional view of a furnace showing a transverse sectional View of my ore car.

Referring now to the drawings, a furnace of suitable structure is indicated at F comprising the outer shell I and the inner shell 2. I The fire box 3 for the furnace is located therebeneath and fuel injection devices as I are illustrated for furnishing the necessary heat. An interior spaced shell 4 provides a passage 5 through which passes the combustion fumes to the chimney C. One end of the furnace is provided with a door 6 having latches 'I. Air pipes 8 having valves 9 are utilized to permit adjustment of the air or oxygen content of the roasting chamber. Duets I0 connecting with the inner roasting chamber serve to convey the volatilized gases to the proper and suitable condensing apparatus.

Within the roasting chamber I provide rails I I upon which my ore cars I2 are adapted to run,

(Cl. 26S-1) These oars include the axles I3 and the flanged Wheels I 4 thereon.

Each car I2 comprises spaced banks I2a of ore containers including the bottom receptacles |217, the side walls of which are divergent, and series of plates I5 disposed angularly with relation to the vertical axis of the cars, each plate in each Wall being parallel to the other plates in the wall, and the lower edge of each plate in a wall being overlapped by the upper edge of each plate next 10 below. In this manner, spaces or slots I6 are formed between eachpair of adjoining plate edges providing for the egress of gases. Vertically disposed bars Il' on opposite sides of each bank, support the plates in properposition.

In order to inhibit the escape of material, however, through the slots IIS, the upper and lower adjoining edges of the plates are substantially overlapped to form ore traps It will be apparent that by such an arrangement, the gases volatilized by the roasting operation may pass through the slots while the material will lack the necessary gravitational force to move upwardly through the slots and fall outside the cars.

In use, the ore car or cars, are loaded with ore and are conveyed into the roasting chamber and the door closed and latched, I-Ieat is applied to the exterior of the roasting chamber and the ore elements are volatilized and pass as gases through the slots I@ in the sides of the cars. It is not necessary that the gases pass through the entire body of the material, but they will pass out of the car through any of the exits or slots provided. The gases are then conducted through the ducts lll to the provided apparatus for further treatment.

When the ore is exhausted of its volatile elements, the door Ii may be opened, and the cal` removed and discharged of its barren ore, and charged with fresh material and the process repeated.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is:

An ore car adapted for use in a roasting furnace and including spaced ore containers, the walls of said containers comprising vertical series of angularly disposed, overlapping, spaced plates, the bottom edge of each plate spaced interiorly from the upper edge of the next lower plate, thereby forming slots permitting the egress of volatilized ore gases and forming ore traps whereby accidental discharge of ore is prevented.

ZACI-IRIAH T. PARKER. 

